RAPID prototyping, INDUSTRIAL engineering, PRODUCTION engineering, MILLS & mill-work, OPTICAL measurements, and CURVATURE
Spacing loss due to micro-waviness and curvature effects in the radial direction of a disk was investigated via numerical simulations and measurements. New techniques based on interferometry and laser scanning were employed to measure radius of curvature (ROC) and to reconstruct the profiles at the outer edge of a disk. A good correlation between ROC values and fly height degradation was obtained, and ROC less than 50 m clearly showed the deterioration in fly height by as much as 1.5 mn. The new measurement techniques proved to be an important means to improve substrate manufacturing processes. [ABSTRACT FROM AUTHOR]
MANUFACTURES, CONTRACT labor, MANUFACTURING processes, RAPID prototyping, INDUSTRIAL engineering, PRODUCTION engineering, MILLS & mill-work, ROPE, and OIL well drilling rigs
The article reports on Parker Scanrope's reaction to petitions from installation contractors for more exact length measurement of its polyester mooring lines is to incorporate extra equipment into the manufacturing procedure. It discusses rope produced using the new method has been supplied to the Perdido proposal in the Gulf of Mexico and also will be delivered to a drilling rig working off Angola. It reports that the development comes against a background of steady expansion in the use of polyester mooring ropes, especially in deepwater where it importantly reduces the loading on the moored structure.